Arduino 7 Segment Display (1 Digit) | Circuit + Code | Counting Numbers | For Beginners

Learn how to use a 1-digit 7-segment display with Arduino step by step.

This video is made for students and beginners.
We explain everything slowly and clearly.

What you will learn:
What a 7-segment display is?
Common Cathode vs Common Anode
Correct breadboard connections
Why resistors are needed
Arduino code to display numbers
Counting logic using loops and arrays

Hardware used:
Arduino Uno
1-digit 7-segment display (Common Cathode)
Breadboard
220Ω resistors
Jumper wires

Pin connections:
a → pin 2
b → pin 3
c → pin 4
d → pin 5
e → pin 6
f → pin 7
g → pin 8

Common pin → GND/5V based on your display, procedure on how to know your display type included in the video.

Code + circuit images

All files used in this video are available on GitHub 👇
👉 GitHub Repository:
Sanketjain0205/arduino-7-segment-display

Practice challenges:
Show only even numbers
Reverse counting
Add a buzzer at 0

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